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source: trunk/src/user32/dc.cpp@ 3662

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Last change on this file since 3662 was 3662, checked in by sandervl, 25 years ago
Major rewrite: frame/client -> frame
File size: 57.8 KB

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1	/* $Id: dc.cpp,v 1.59 2000-06-07 14:51:25 sandervl Exp $ */
2
3	/*
4	* DC functions for USER32
5	*
6	* Project Odin Software License can be found in LICENSE.TXT
7	*
8	*/
9
10	/*****************************************************************************
11	* Includes *
12	*****************************************************************************/
13
14	#include <odin.h>
15
16	#define INCL_WIN
17	#define INCL_GPI
18	#define INCL_GREALL
19	#define INCL_DEV
20	#include <os2wrap.h>
21	//#include <pmddi.h>
22	#include <stdlib.h>
23
24	#include <string.h>
25	#include <win32type.h>
26	#include <win32api.h>
27	#include <winconst.h>
28	#include <misc.h>
29	#include <win32wbase.h>
30	#include <math.h>
31	#include <limits.h>
32	#include "oslibwin.h"
33	#include "oslibmsg.h"
34	#include <dcdata.h>
35
36	#define INCLUDED_BY_DC
37	#include "dc.h"
38
39	#define DBG_LOCALLOG DBG_dc
40	#include "dbglocal.h"
41
42	#ifndef DEVESC_SETPS
43	#define DEVESC_SETPS 49149L
44	#endif
45
46	#define FLOAT_TO_FIXED(x) ((FIXED) ((x) * 65536.0))
47	#define MICRO_HPS_TO_HDC(x) ((x) & 0xFFFFFFFE)
48
49	#define PMRECT_FROM_WINRECT( pmRect, winRect ) \
50	{ \
51	(pmRect).xLeft = (winRect).left; \
52	(pmRect).yBottom = (winRect).bottom; \
53	(pmRect).xRight = (winRect).right; \
54	(pmRect).yTop = (winRect).top; \
55	}
56
57	#define WINRECT_FROM_PMRECT( winRect, pmRect ) \
58	{ \
59	(winRect).left = (pmRect).xLeft; \
60	(winRect).top = (pmRect).yTop; \
61	(winRect).right = (pmRect).xRight; \
62	(winRect).bottom = (pmRect).yBottom; \
63	}
64
65	#define MEM_HPS_MAX 768
66
67	const XFORM_W XFORMIdentity = { 1.0, 0.0, 0.0, 1.0, 0, 0 };
68	const MATRIXLF matrixlfIdentity = { 0x10000, 0, 0, 0, 0x10000, 0, 0, 0, 0};
69
70	BOOL setPageXForm(Win32BaseWindow *wnd, pDCData pHps);
71	BOOL changePageXForm(Win32BaseWindow *wnd, pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev);
72	LONG clientHeight(Win32BaseWindow *wnd, HWND hwnd, pDCData pHps);
73
74	//******************************************************************************
75	//******************************************************************************
76	void TestWideLine (pDCData pHps)
77	{
78	const LOGPEN_W *pLogPen;
79
80	pHps->isWideLine = FALSE;
81	pLogPen = pHps->penIsExtPen ?
82	&(pHps->lastPenObject->ExtPen.logpen) :
83	&(pHps->lastPenObject->Pen.logpen);
84
85	if (((pLogPen->lopnStyle & PS_STYLE_MASK_W) != PS_NULL_W) &&
86	(pLogPen->lopnWidth.x > 0))
87	{
88	POINTL aptl[2] = { 0, 0, pLogPen->lopnWidth.x, pLogPen->lopnWidth.x };
89
90	GpiConvert(pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, aptl);
91
92	ULONG dx = abs(aptl[0].x - aptl[1].x);
93	ULONG dy = abs(aptl[0].y - aptl[1].y);
94
95	pHps->isWideLine = (dx > 1) \|\| (dy > 1);
96	}
97	}
98	//******************************************************************************
99	//******************************************************************************
100	void Calculate1PixelDelta(pDCData pHps)
101	{
102	POINTL aptl[2] = {0, 0, 1, 1};
103
104	GpiConvert(pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, aptl);
105	pHps->worldYDeltaFor1Pixel = (int)(aptl[1].y - aptl[0].y);
106	pHps->worldXDeltaFor1Pixel = (int)(aptl[1].x - aptl[0].x); // 171182
107	}
108	//******************************************************************************
109	//******************************************************************************
110	int setMapMode(Win32BaseWindow *wnd, pDCData pHps, int mode)
111	{
112	int prevMode = 0;
113	ULONG flOptions;
114
115	switch (mode)
116	{
117	case MM_HIENGLISH_W : flOptions = PU_HIENGLISH; break;
118	case MM_LOENGLISH_W : flOptions = PU_LOENGLISH; break;
119	case MM_HIMETRIC_W : flOptions = PU_HIMETRIC ; break;
120	case MM_LOMETRIC_W : flOptions = PU_LOMETRIC ; break;
121	case MM_TEXT_W : flOptions = PU_PELS ; break;
122	case MM_TWIPS_W : flOptions = PU_TWIPS ; break;
123	case MM_ANISOTROPIC_W: flOptions = PU_PELS ; break;
124	case MM_ISOTROPIC_W : flOptions = PU_LOMETRIC ; break;
125	default:
126	SetLastError(ERROR_INVALID_PARAMETER_W);
127	return FALSE;
128	}
129
130	prevMode = pHps->MapMode; /* store previous mode */
131	pHps->MapMode = mode;
132
133	if (mode == MM_TEXT_W)
134	{
135	pHps->viewportXExt =
136	pHps->viewportYExt = 1.0;
137	pHps->windowExt.cx =
138	pHps->windowExt.cy = 1;
139	}
140	else if (mode != MM_ANISOTROPIC_W)
141	{
142	RECTL rectl;
143	SIZEL sizel;
144	ULONG data[3];
145
146	data[0] = flOptions;
147	data[1] = data[2] = 0;
148
149	if (DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0) == DEVESC_ERROR)
150	{
151	SetLastError(ERROR_INVALID_PARAMETER_W);
152	return 0;
153	}
154
155	GpiQueryPageViewport(pHps->hps, &rectl);
156	pHps->viewportXExt = (double)rectl.xRight;
157	pHps->viewportYExt = -(double)rectl.yTop;
158
159	GreGetPageUnits(pHps->hdc? pHps->hdc : pHps->hps, &sizel);
160	pHps->windowExt.cx = sizel.cx;
161	pHps->windowExt.cy = sizel.cy;
162
163	data[0] = PU_PELS;
164	DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0);
165	}
166
167	if (((prevMode != MM_ISOTROPIC_W) && (prevMode != MM_ANISOTROPIC_W)) &&
168	((mode == MM_ISOTROPIC_W) \|\| (mode == MM_ANISOTROPIC_W)))
169	{
170	if (pHps->lWndXExtSave && pHps->lWndYExtSave)
171	{
172	changePageXForm (wnd, pHps, (PPOINTL)&pHps->windowExt,
173	pHps->lWndXExtSave, pHps->lWndYExtSave, NULL );
174	pHps->lWndXExtSave = pHps->lWndYExtSave = 0;
175	}
176	if (pHps->lVwpXExtSave && pHps->lVwpYExtSave)
177	{
178	changePageXForm (wnd, pHps, NULL,
179	pHps->lVwpXExtSave, pHps->lVwpYExtSave, NULL );
180	pHps->lVwpXExtSave = pHps->lVwpYExtSave = 0;
181	}
182	}
183
184	setPageXForm(wnd, pHps);
185
186	return prevMode;
187	}
188	//******************************************************************************
189	//******************************************************************************
190	BOOL setPageXForm(Win32BaseWindow *wnd, pDCData pHps)
191	{
192	MATRIXLF mlf;
193	BOOL rc = TRUE;
194
195	pHps->height = clientHeight(wnd, 0, pHps) - 1;
196
197	double xScale = pHps->viewportXExt / (double)pHps->windowExt.cx;
198	double yScale = pHps->viewportYExt / (double)pHps->windowExt.cy;
199
200	mlf.fxM11 = FLOAT_TO_FIXED(xScale);
201	mlf.fxM12 = 0;
202	mlf.lM13 = 0;
203	mlf.fxM21 = 0;
204	mlf.fxM22 = FLOAT_TO_FIXED(yScale);
205	mlf.lM23 = 0;
206	mlf.lM31 = pHps->viewportOrg.x - (LONG)(pHps->windowOrg.x * xScale);
207	mlf.lM32 = pHps->viewportOrg.y - (LONG)(pHps->windowOrg.y * yScale);
208
209	pHps->isLeftLeft = mlf.fxM11 >= 0;
210	pHps->isTopTop = mlf.fxM22 >= 0;
211
212	BOOL bEnableYInversion = FALSE;
213	if ((mlf.fxM22 > 0) \|\|
214	((pHps->graphicsMode == GM_ADVANCED_W) &&
215	((pHps->MapMode == MM_ANISOTROPIC_W) \|\|
216	(pHps->MapMode == MM_ISOTROPIC_W))))
217	{
218	bEnableYInversion = TRUE;
219	}
220	else
221	{
222	bEnableYInversion = FALSE;
223	mlf.lM32 = pHps->HPStoHDCInversionHeight + pHps->height - mlf.lM32;
224	mlf.fxM22 = -mlf.fxM22;
225	}
226
227	if (!pHps->isMetaPS)
228	// if ((!pHps->isMetaPS) \|\|
229	// (pHps->pMetaFileObject && pHps->pMetaFileObject->isEnhanced()))
230	rc = GpiSetDefaultViewMatrix(pHps->hps, 8, &mlf, TRANSFORM_REPLACE);
231
232	if (bEnableYInversion)
233	GpiEnableYInversion(pHps->hps, pHps->height + pHps->HPStoHDCInversionHeight);
234	else
235	GpiEnableYInversion(pHps->hps, 0);
236
237	TestWideLine(pHps);
238	Calculate1PixelDelta(pHps);
239	return rc;
240	}
241	//******************************************************************************
242	//******************************************************************************
243	BOOL changePageXForm(Win32BaseWindow *wnd, pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev)
244	{
245	BOOL result = FALSE;
246
247	if (pValue)
248	{
249	if (pPrev)
250	pPrev = pValue;
251
252	if ((pValue->x == x) && (pValue->y == y)) {
253	return TRUE;
254	}
255	pValue->x = x;
256	pValue->y = y;
257	}
258	else
259	{
260	if (pPrev)
261	{
262	pPrev->x = (int)pHps->viewportXExt;
263	pPrev->y = (int)pHps->viewportYExt;
264	}
265	pHps->viewportXExt = (double)x;
266	pHps->viewportYExt = (double)y;
267	}
268
269	if (pHps->MapMode == MM_ISOTROPIC_W)
270	{
271	double xExt = fabs(pHps->viewportXExt);
272	double yExt = fabs(pHps->viewportYExt);
273	double sf = fabs((double)pHps->windowExt.cx / pHps->windowExt.cy);
274
275	if (xExt > (yExt * sf))
276	{
277	xExt = yExt * sf;
278
279	if ((double)LONG_MAX <= xExt) return (result);
280
281	if (pHps->viewportXExt < 0.0)
282	pHps->viewportXExt = -xExt;
283	else
284	pHps->viewportXExt = xExt;
285	}
286	else
287	{
288	yExt = xExt / sf;
289
290	if ((double)LONG_MAX <= yExt) return (result);
291
292	if (pHps->viewportYExt < 0.0)
293	pHps->viewportYExt = -yExt;
294	else
295	pHps->viewportYExt = yExt;
296	}
297	}
298	result = setPageXForm(wnd, pHps);
299
300	return (result);
301	}
302	//******************************************************************************
303	//******************************************************************************
304	VOID removeClientArea(pDCData pHps)
305	{
306	POINTL point;
307
308	// This function checks to see if a client area is currently selected, if
309	// it is the origin plus the visible region of the frame are restored.
310
311	pHps->isClient = FALSE;
312
313	GreGetDCOrigin(pHps->hps, &point);
314
315	if(pHps->isClientArea)
316	{
317	dprintf2(("removeClientArea: (%d,%d) -> (%d,%d)", point.x, point.y, pHps->ptlOrigin.x, pHps->ptlOrigin.y));
318	pHps->isClientArea = FALSE;
319	GreSetupDC(pHps->hps,
320	pHps->hrgnVis,
321	pHps->ptlOrigin.x,
322	pHps->ptlOrigin.y,
323	0,
324	SETUPDC_ORIGIN \| SETUPDC_VISRGN \| SETUPDC_RECALCCLIP);
325	}
326	else dprintf(("removeClientArea: (%d,%d)", point.x, point.y));
327
328	}
329	//******************************************************************************
330	//******************************************************************************
331	HRGN selectClientArea(Win32BaseWindow *window, pDCData pHps, PRECTL prclPaint)
332	{
333	// This function checks to see if the DC needs to be adjusted to a client
334	// area and makes the adjustment.
335	RECTL rcl, rcltemp;
336	HRGN hrgnRect, hrgnClip, hrgnOldClip = 0;
337	HWND hwnd;
338	LONG rc;
339	PRECT pClient = window->getClientRectPtr();
340	PRECT pWindow = window->getWindowRect();
341
342	if(pClient->left == 0 && pClient->top == 0 &&
343	window->getClientHeight() == window->getWindowHeight() &&
344	window->getClientWidth() == window->getWindowWidth())
345	{
346	//client rectangle = frame rectangle -> no change necessary
347	//only setup the clip region
348	goto setupclipregion;
349	}
350
351	pHps->isClient = TRUE;
352
353	hwnd = window->getOS2WindowHandle();
354
355	mapWin32ToOS2Rect(window->getWindowHeight(), window->getClientRectPtr(), (PRECTLOS2)&rcl);
356
357	//convert to screen coordinates
358	GreGetDCOrigin(pHps->hps, (PPOINTL)&rcltemp);
359	rcl.xLeft += rcltemp.xLeft;
360	rcl.xRight += rcltemp.xLeft;
361	rcl.yTop += rcltemp.yBottom;
362	rcl.yBottom += rcltemp.yBottom;
363
364	pHps->ptlOrigin.x = rcltemp.xLeft;
365	pHps->ptlOrigin.y = rcltemp.yBottom;
366
367	dprintf2(("selectClientArea: (%d,%d) -> (%d,%d)", rcltemp.xLeft, rcltemp.yBottom, rcl.xLeft, rcl.yBottom));
368
369	if(pHps->hrgnVis == 0)
370	pHps->hrgnVis = GreCreateRectRegion(pHps->hps, &rcl, 1);
371
372	hrgnRect = GreCreateRectRegion(pHps->hps, &rcl, 1);
373
374	// Query the visible region
375	GreCopyClipRegion(pHps->hps, pHps->hrgnVis, 0, COPYCRGN_VISRGN);
376	GpiQueryRegionBox(pHps->hps, pHps->hrgnVis, &rcltemp);
377	// And the visible region of the frame with the client rectangle
378	// to get the new visible region
379	GreCombineRegion(pHps->hps, hrgnRect, pHps->hrgnVis, hrgnRect, CRGN_AND);
380
381	// Set the new origin plus visible region in the DC
382	GreSetupDC(pHps->hps,
383	hrgnRect,
384	rcl.xLeft,
385	rcl.yBottom,
386	NULL,
387	SETUPDC_ORIGIN \| SETUPDC_VISRGN \| SETUPDC_RECALCCLIP);
388
389	/*
390	GpiQueryRegionBox(pHps->hps, hrgnClip, &rcltemp);
391	GpiQueryRegionBox(pHps->hps, hrgnOldClip, &rcltemp);
392
393	GpiQueryRegionBox(pHps->hps, hrgnRect, &rcltemp);
394
395	GreGetDCOrigin(pHps->hps, (PPOINTL)&rcltemp);
396
397	GreCopyClipRegion(pHps->hps, hrgnRect, 0, COPYCRGN_VISRGN);
398	GpiQueryRegionBox(pHps->hps, hrgnRect, &rcltemp);
399
400	GreCopyClipRegion(pHps->hps, hrgnRect, 0, COPYCRGN_ALLINTERSECT);
401	GpiQueryRegionBox(pHps->hps, hrgnRect, &rcltemp);
402
403	GreCopyClipRegion(pHps->hps, hrgnRect, 0, COPYCRGN_CLIPRGN);
404	GpiQueryRegionBox(pHps->hps, hrgnRect, &rcltemp);
405	*/
406	pHps->isClientArea = TRUE;
407
408	// Destroy the region now we have finished with it.
409	GreDestroyRegion(pHps->hps, hrgnRect);
410
411	setupclipregion:
412	if(prclPaint) {
413	hrgnClip = GpiQueryClipRegion(pHps->hps);
414	if(hrgnClip) {
415	rc = GreIntersectClipRectangle(pHps->hps, prclPaint);
416	if(rc == RGN_ERROR) {
417	dprintf(("selectClientArea: GreIntersectClipRectangle returned RGN_ERROR!"));
418	}
419	}
420	else {
421	hrgnClip = GreCreateRectRegion(pHps->hps, prclPaint, 1);
422	GreSelectClipRegion(pHps->hps, hrgnClip, &hrgnOldClip);
423	}
424	}
425
426	return hrgnOldClip;
427	}
428	//******************************************************************************
429	//******************************************************************************
430	LONG clientHeight(Win32BaseWindow *wnd, HWND hwnd, pDCData pHps)
431	{
432	if ((hwnd == 0) && (pHps != 0))
433	hwnd = pHps->hwnd;
434
435	if ((hwnd != 0) \|\| (pHps == 0))
436	{
437	if(wnd) {
438	if(pHps && !pHps->isClientArea) {
439	return (wnd->getWindowHeight());
440	}
441	else return (wnd->getClientHeight());
442	}
443	else return OSLibQueryScreenHeight();
444	}
445	else if (pHps->bitmapHandle)
446	{
447	return pHps->bitmapHeight;
448	}
449	else if (pHps->isMetaPS)
450	{
451	return 0;
452	}
453	else if (pHps->isPrinter)
454	{
455	return pHps->printPageHeight;
456	}
457	else
458	{
459	return MEM_HPS_MAX;
460	}
461	}
462	//******************************************************************************
463	//******************************************************************************
464	BOOL isYup (pDCData pHps)
465	{
466	if (((pHps->windowExt.cy < 0) && (pHps->viewportYExt > 0.0)) \|\|
467	((pHps->windowExt.cy > 0) && (pHps->viewportYExt < 0.0)))
468	{
469	if ((pHps->graphicsMode == GM_COMPATIBLE_W) \|\|
470	((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 >= 0.0)))
471	return TRUE;
472	}
473	else
474	{
475	if ((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 < 0.0))
476	return TRUE;
477	}
478	return FALSE;
479	}
480	//******************************************************************************
481	//******************************************************************************
482	INT revertDy (Win32BaseWindow *wnd, INT dy)
483	{
484	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
485	// if (wnd->isOwnDC() && wnd->getOwnDC())
486	if (wnd->isOwnDC())
487	{
488	pDCData pHps = (pDCData)GpiQueryDCData (wnd->getOwnDC());
489
490	if (pHps != NULLHANDLE)
491	if (!isYup (pHps))
492	dy = -dy;
493	}
494	else
495	{
496	dy = -dy;
497	}
498	return (dy);
499	}
500	//******************************************************************************
501	//******************************************************************************
502	HDC sendEraseBkgnd (Win32BaseWindow *wnd)
503	{
504	BOOL erased;
505	HWND hwnd;
506	HDC hdc;
507	HPS hps;
508	HRGN hrgnUpdate, hrgnOld, hrgnClip, hrgnCombined;
509	RECTL rectl = { 1, 1, 2, 2 };
510
511	hwnd = wnd->getOS2WindowHandle();
512	hps = WinGetPS(hwnd);
513
514	hrgnUpdate = GpiCreateRegion (hps, 1, &rectl);
515	WinQueryUpdateRegion (hwnd, hrgnUpdate);
516	hrgnClip = GpiQueryClipRegion (hps);
517
518	if (hrgnClip == NULLHANDLE)
519	{
520	GpiSetClipRegion (hps, hrgnUpdate, &hrgnOld);
521	}
522	else
523	{
524	hrgnCombined = GpiCreateRegion (hps, 1, &rectl);
525	GpiCombineRegion (hps, hrgnCombined, hrgnClip, hrgnUpdate, CRGN_AND);
526	GpiSetClipRegion (hps, hrgnCombined, &hrgnOld);
527	GpiDestroyRegion (hps, hrgnUpdate);
528	GpiDestroyRegion (hps, hrgnClip);
529	}
530	if (hrgnOld != NULLHANDLE)
531	GpiDestroyRegion (hps, hrgnOld);
532
533	hdc = HPSToHDC (hwnd, hps, NULL, NULL);
534
535	erased = wnd->MsgEraseBackGround (hdc);
536
537	DeleteHDC (hdc);
538	WinReleasePS (hps);
539
540	return erased;
541	}
542	//******************************************************************************
543	//******************************************************************************
544	void releaseOwnDC (HDC hps)
545	{
546	pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hps);
547
548	if (pHps) {
549	if (pHps->hrgnHDC)
550	GpiDestroyRegion (pHps->hps, pHps->hrgnHDC);
551
552	GpiSetBitmap (pHps->hps, NULL);
553	O32_DeleteObject (pHps->nullBitmapHandle);
554	GpiDestroyPS(pHps->hps);
555
556	if (pHps->hdc)
557	DevCloseDC(pHps->hdc);
558	}
559	}
560	//******************************************************************************
561	//******************************************************************************
562	HDC WIN32API BeginPaint (HWND hWnd, PPAINTSTRUCT_W lpps)
563	{
564	HWND hwnd = hWnd ? hWnd : HWND_DESKTOP;
565	pDCData pHps = NULLHANDLE;
566	HPS hPS_ownDC = NULLHANDLE, hpsPaint = 0;
567	RECTL rectl = {0, 0, 1, 1};
568	HRGN hrgnUpdate, hrgnOld, hrgnOldClip;
569	LONG lComplexity;
570	RECTL rectlClient;
571	RECTL rectlClip;
572
573	memset(lpps, 0, sizeof(*lpps));
574	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
575	if(!lpps \|\| !wnd) {
576	dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
577	SetLastError(ERROR_INVALID_PARAMETER_W);
578	return (HDC)0;
579	}
580	HWND hwndClient = wnd->getOS2WindowHandle();
581
582	if(hwnd != HWND_DESKTOP && wnd->isOwnDC())
583	{
584	hPS_ownDC = wnd->getOwnDC();
585	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
586	if(hPS_ownDC) {
587	pHps = (pDCData)GpiQueryDCData(hPS_ownDC);
588	if (!pHps)
589	{
590	dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
591	SetLastError(ERROR_INVALID_PARAMETER_W);
592	return (HDC)NULLHANDLE;
593	}
594	hpsPaint = hPS_ownDC;
595	}
596	}
597	if(!hpsPaint) {
598	hpsPaint = GetDCEx(hwnd, 0, (DCX_CACHE_W\|DCX_WINDOW_W\|DCX_USESTYLE_W));
599	pHps = (pDCData)GpiQueryDCData(hpsPaint);
600	if (!pHps)
601	{
602	dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
603	SetLastError(ERROR_INVALID_PARAMETER_W);
604	return (HDC)NULLHANDLE;
605	}
606	}
607
608	if(WinQueryUpdateRect(hwndClient, &rectl) == FALSE) {
609	memset(&rectl, 0, sizeof(rectl));
610	dprintf (("USER32: WARNING: WinQueryUpdateRect failed (error or no update rectangle)!!"));
611
612	mapWin32ToOS2Rect(wnd->getWindowHeight(), wnd->getClientRectPtr(), (PRECTLOS2)&rectlClient);
613	WinOffsetRect(NULL, &rectlClient, -rectlClient.xLeft, -rectlClient.yBottom);
614
615	hrgnOldClip = selectClientArea(wnd, pHps, &rectlClient);
616	//save old clip region (restored for CS_OWNDC windows in EndPaint)
617	wnd->SetClipRegion(hrgnOldClip);
618	lComplexity = RGN_NULL;
619	}
620	else {
621	HRGN hrgnTmp = GpiCreateRegion(pHps->hps, 1, &rectl);
622
623	WinQueryUpdateRegion(hwndClient, hrgnTmp);
624
625	RGNRECT rgnrect = {0, 12, 0, RECTDIR_LFRT_TOPBOT};
626	RECTL rectls[12], rcltemp;
627	GpiQueryRegionRects(pHps->hps, hrgnTmp, &rcltemp, &rgnrect, &rectls[0]);
628	GpiDestroyRegion(pHps->hps, hrgnTmp);
629
630	WinValidateRect(hwndClient, &rectl, FALSE);
631
632	mapWin32ToOS2Rect(wnd->getWindowHeight(), wnd->getClientRectPtr(), (PRECTLOS2)&rectlClient);
633	WinIntersectRect(NULL, &rectlClip, &rectl, &rectlClient);
634	WinOffsetRect(NULL, &rectlClip, -rectlClient.xLeft, -rectlClient.yBottom);
635
636	hrgnOldClip = selectClientArea(wnd, pHps, &rectlClip);
637
638	//save old clip region (restored for CS_OWNDC windows in EndPaint)
639	wnd->SetClipRegion(hrgnOldClip);
640	memcpy(&rectl, &rectlClip, sizeof(RECTL));
641	lComplexity = RGN_RECT;
642	}
643
644	if(hPS_ownDC == 0)
645	setMapMode (wnd, pHps, MM_TEXT_W);
646	else
647	setPageXForm(wnd, pHps);
648
649	pHps->hdcType = TYPE_3;
650
651	HideCaret(hwnd);
652	WinShowTrackRect(wnd->getOS2WindowHandle(), FALSE);
653
654	if(wnd->needsEraseBkgnd() && lComplexity != RGN_NULL) {
655	wnd->setEraseBkgnd(FALSE);
656	lpps->fErase = (wnd->MsgEraseBackGround(pHps->hps) != 0);
657	}
658	else lpps->fErase = TRUE;
659
660	lpps->hdc = (HDC)pHps->hps;
661
662	if(lComplexity != RGN_NULL) {
663	long height = wnd->getClientHeight();
664	lpps->rcPaint.top = height - rectl.yTop;
665	lpps->rcPaint.left = rectl.xLeft;
666	lpps->rcPaint.bottom = height - rectl.yBottom;
667	lpps->rcPaint.right = rectl.xRight;
668	}
669	else {
670	lpps->rcPaint.bottom = lpps->rcPaint.top = 0;
671	lpps->rcPaint.right = lpps->rcPaint.left = 0;
672	}
673
674	SetLastError(0);
675	dprintf(("USER32: BeginPaint %x -> hdc %x (%d,%d)(%d,%d)", hWnd, pHps->hps, lpps->rcPaint.left, lpps->rcPaint.top, lpps->rcPaint.right, lpps->rcPaint.bottom));
676	return (HDC)pHps->hps;
677	}
678	//******************************************************************************
679	//******************************************************************************
680	BOOL WIN32API EndPaint (HWND hWnd, const PAINTSTRUCT_W *pPaint)
681	{
682	HWND hwnd = hWnd ? hWnd : HWND_DESKTOP;
683	HRGN hrgnOld;
684	pDCData pHps;
685
686	dprintf (("USER32: EndPaint(%x)", hwnd));
687
688	if (!pPaint \|\| !pPaint->hdc )
689	return TRUE;
690
691	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
692
693	if (!wnd) goto exit;
694
695	pHps = (pDCData)GpiQueryDCData((HPS)pPaint->hdc);
696	if (pHps && (pHps->hdcType == TYPE_3))
697	{
698	removeClientArea(pHps);
699	if(hrgnOld) {
700	GpiSetClipRegion(pHps->hps, NULLHANDLE, &hrgnOld);
701	GpiDestroyRegion(pHps->hps, hrgnOld);
702	}
703	if(hwnd == HWND_DESKTOP \|\| !wnd->isOwnDC()) {
704	pHps->hdcType = TYPE_1; //otherwise Open32's ReleaseDC fails
705	ReleaseDC(hwnd, pPaint->hdc);
706	}
707	else
708	if(wnd->GetClipRegion()) {
709	//TODO: What else do we need to restore here???
710	GpiSetClipRegion(pHps->hps, wnd->GetClipRegion(), &hrgnOld);
711	wnd->SetClipRegion(0);
712	pHps->hdcType = TYPE_1;
713	}
714	}
715	else {
716	dprintf(("EndPaint: wrong hdc %x!!", pPaint->hdc));
717	}
718	wnd->setEraseBkgnd(TRUE);
719	ShowCaret(hwnd);
720	WinShowTrackRect(wnd->getOS2WindowHandle(), TRUE);
721
722	exit:
723	SetLastError(0);
724	return TRUE;
725	}
726	//******************************************************************************
727	//******************************************************************************
728	int WIN32API GetClipBox( HDC hdc, PRECT lpRect)
729	{
730	pDCData pHps = (pDCData)GpiQueryDCData((HPS)hdc);
731	RECTL rectl;
732	LONG lComplexity;
733	int rc;
734
735	if(!hdc \|\| !lpRect \|\| !pHps) {
736	dprintf(("GDI32: GetClipBox %x %x ERROR_INVALID_PARAMETER", hdc, lpRect));
737	SetLastError(ERROR_INVALID_PARAMETER_W);
738	return ERROR_W;
739	}
740	if(pHps->isPrinter)
741	{
742	lpRect->left = 0;
743	lpRect->top = 0;
744	lpRect->right = GetDeviceCaps( hdc, HORZRES_W);
745	lpRect->bottom = GetDeviceCaps( hdc, VERTRES_W);
746
747	rc = SIMPLEREGION_W;
748	}
749	else {
750	lComplexity = GpiQueryClipBox(pHps->hps, &rectl);
751	if(lComplexity == RGN_ERROR)
752	{
753	rc = ERROR_W;
754	}
755	else
756	if(lComplexity == RGN_NULL)
757	{
758	memset(lpRect, 0, sizeof(*lpRect));
759	rc = NULLREGION_W;
760	}
761	else {
762	lpRect->left = rectl.xLeft;
763	lpRect->right = rectl.xRight;
764	#if 0
765	lpRect->top = pHps->height - rectl.yTop;
766	lpRect->bottom = pHps->height - rectl.yBottom;
767	#else
768	//No conversion required as GpiQueryClipBox is affected by
769	//the y-inversion of the window
770	lpRect->top = rectl.yBottom;
771	lpRect->bottom = rectl.yTop;
772	#endif
773	//Convert including/including to including/excluding
774	if(lpRect->left != lpRect->right) {
775	lpRect->right++;
776	}
777	if(lpRect->top != lpRect->bottom) {
778	lpRect->bottom++;
779	}
780	rc = (lComplexity == RGN_RECT) ? SIMPLEREGION_W : COMPLEXREGION_W;
781	}
782	}
783	dprintf(("GDI32: GetClipBox of %X returned %d\n", hdc, rc));
784	return rc;
785	}
786	//******************************************************************************
787	//******************************************************************************
788	int WIN32API GetClipRgn( HDC hdc, HRGN hRgn)
789	{
790	int rc;
791
792	rc = O32_GetClipRgn(hdc, hRgn);
793	dprintf(("GDI32: GetClipRgn %x %x returned %x", hdc, hRgn, rc));
794	return rc;
795	}
796	//******************************************************************************
797	//******************************************************************************
798	BOOL WIN32API GetUpdateRect (HWND hwnd, LPRECT pRect, BOOL erase)
799	{
800	if (!hwnd)
801	{
802	dprintf(("GetUpdateRect %x %x %d -> invalid handle!!", hwnd, pRect, erase));
803	SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
804	return FALSE;
805	}
806
807	RECTL rectl;
808	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
809
810	if (!wnd)
811	{
812	SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
813	dprintf(("GetUpdateRect %x %x %d -> invalid handle!!", hwnd, pRect, erase));
814	return FALSE;
815	}
816
817	dprintf(("GetUpdateRect %x %x %d", hwnd, pRect, erase));
818
819	BOOL updateRegionExists = WinQueryUpdateRect (wnd->getOS2WindowHandle(), pRect ? &rectl : NULL);
820	if (!pRect) {
821	return (updateRegionExists);
822	}
823
824	if (updateRegionExists)
825	{
826	//CB: for PM empty rect is valid
827	if ((rectl.xLeft == rectl.xRight) \|\| (rectl.yTop == rectl.yBottom)) {
828	if(pRect) {
829	pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
830	}
831	return FALSE;
832	}
833	#if 0
834	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
835	// if (wnd->isOwnDC() && wnd->getOwnDC())
836	if (wnd->isOwnDC())
837	{
838	pDCData pHps = NULL;
839	pHps = (pDCData)GpiQueryDCData(wnd->getOwnDC());
840	if (!pHps)
841	{
842	SetLastError(ERROR_INVALID_HANDLE_W);
843	return FALSE;
844	}
845	GpiConvert (pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, (PPOINTL)&rectl);
846	}
847	else
848	{
849	#endif
850	long height = wnd->getClientHeight();
851	rectl.yTop = height - rectl.yTop;
852	rectl.yBottom = height - rectl.yBottom;
853	////////// }
854
855	if (pRect)
856	WINRECT_FROM_PMRECT (*pRect, rectl);
857
858	if (erase)
859	sendEraseBkgnd (wnd);
860	}
861	else
862	{
863	if(pRect) {
864	pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
865	}
866	}
867
868	return updateRegionExists;
869	}
870	//******************************************************************************
871	//functions for WM_NCPAINT
872	//******************************************************************************
873	INT SYSTEM GetOS2UpdateRgn(HWND hwnd,HRGN hrgn)
874	{
875	return O32_GetUpdateRgn(hwnd,hrgn,FALSE);
876	}
877	//******************************************************************************
878	//******************************************************************************
879	BOOL GetOS2UpdateRect(Win32BaseWindow *window, LPRECT pRect)
880	{
881	RECTL rectl;
882	BOOL updateRegionExists = WinQueryUpdateRect(window->getOS2WindowHandle(),pRect ? &rectl:NULL);
883
884	if (!pRect)
885	return (updateRegionExists);
886
887	if (updateRegionExists)
888	{
889	//CB: for PM empty rect is valid
890	if ((rectl.xLeft == rectl.xRight) \|\| (rectl.yTop == rectl.yBottom)) return FALSE;
891	mapOS2ToWin32Rect(window->getWindowHeight(), (PRECTLOS2)&rectl,pRect);
892	}
893	else
894	pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
895
896	return updateRegionExists;
897	}
898	//******************************************************************************
899	//******************************************************************************
900	int WIN32API GetUpdateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
901	{
902	LONG Complexity;
903
904	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
905
906	if (!wnd)
907	{
908	SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
909	return ERROR_W;
910	}
911
912	Complexity = O32_GetUpdateRgn (wnd->getOS2WindowHandle(), hrgn, FALSE);
913	if (erase && (Complexity > NULLREGION_W)) sendEraseBkgnd(wnd);
914
915	return Complexity;
916	}
917	//******************************************************************************
918	//******************************************************************************
919	int WIN32API ReleaseDC (HWND hwnd, HDC hdc)
920	{
921	BOOL isOwnDC = FALSE;
922	int rc;
923
924	if (hwnd)
925	{
926	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
927	if(wnd == NULL) {
928	dprintf(("ERROR: ReleaseDC %x %x failed", hwnd, hdc));
929	return 0;
930	}
931	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
932	// isOwnDC = wnd->isOwnDC() && wnd->getOwnDC();
933	isOwnDC = wnd->isOwnDC() && (wnd->getOwnDC() == hdc);
934	if(!isOwnDC)
935	{
936	pDCData pHps = (pDCData)GpiQueryDCData((HPS)hdc);
937	if(pHps && pHps->psType == MICRO_CACHED) {
938	removeClientArea(pHps);
939	if(pHps->hrgnVis) {
940	GreDestroyRegion(pHps->hps, pHps->hrgnVis);
941	pHps->hrgnVis = 0;
942	}
943	}
944	else {
945	dprintf(("ERROR: ReleaseDC: pHps == NULL!!"));
946	DebugInt3();
947	}
948	}
949	}
950
951	if(isOwnDC) {
952	rc = TRUE;
953	}
954	else {
955	rc = O32_ReleaseDC (0, hdc);
956	}
957
958	dprintf(("ReleaseDC %x %x", hwnd, hdc));
959	return (rc);
960	}
961	//******************************************************************************
962	// This implementation of GetDCEx supports
963	// DCX_WINDOW
964	// DCX_CACHE
965	// DCX_EXCLUDERGN (complex regions allowed)
966	// DCX_INTERSECTRGN (complex regions allowed)
967	// DCX_USESTYLE
968	// DCX_CLIPSIBLINGS
969	// DCX_CLIPCHILDREN
970	// DCX_PARENTCLIP
971	//
972	//TODO: WM_SETREDRAW affects drawingAllowed flag!!
973	//******************************************************************************
974	HDC WIN32API GetDCEx (HWND hwnd, HRGN hrgn, ULONG flags)
975	{
976	Win32BaseWindow *wnd = NULL;
977	HWND hWindow;
978	BOOL success;
979	pDCData pHps = NULL;
980	HPS hps = NULLHANDLE;
981	BOOL drawingAllowed = TRUE;
982	BOOL isWindowOwnDC;
983	BOOL creatingOwnDC = FALSE;
984	PS_Type psType;
985
986	if(hwnd == 0) {
987	dprintf(("error: GetDCEx window %x not found", hwnd));
988	SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
989	return 0;
990	}
991
992	if (hwnd)
993	{
994	wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
995	if(wnd == NULL) {
996	dprintf (("ERROR: User32: GetDCEx bad window handle %X!!!!!", hwnd));
997	SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
998	return 0;
999	}
1000	hWindow = wnd->getOS2WindowHandle();
1001	}
1002
1003	isWindowOwnDC = (((hWindow == HWND_DESKTOP) ? FALSE : (wnd->isOwnDC()))
1004	&& !(flags & DCX_CACHE_W));
1005
1006	if(isWindowOwnDC)
1007	{
1008	hps = wnd->getOwnDC();
1009	if (hps)
1010	{
1011	pDCData pHps = (pDCData)GpiQueryDCData (hps);
1012	if (!pHps)
1013	goto error;
1014
1015	if(flags & DCX_WINDOW_W)
1016	removeClientArea(pHps);
1017	else
1018	selectClientArea(wnd, pHps, NULL);
1019
1020	setPageXForm (wnd, pHps);
1021	pHps->hdcType = TYPE_1;
1022
1023	dprintf (("User32: GetDCEx hwnd %x (%x %x) -> wnd %x hdc %x", hwnd, hrgn, flags, wnd, hps));
1024	return (HDC)hps;
1025	}
1026	else
1027	creatingOwnDC = TRUE;
1028	}
1029
1030	if(isWindowOwnDC)
1031	{
1032	SIZEL sizel = {0,0};
1033	hps = GpiCreatePS (WinQueryAnchorBlock (hWindow),
1034	WinOpenWindowDC (hWindow),
1035	&sizel, PU_PELS \| GPIT_MICRO \| GPIA_ASSOC );
1036	psType = MICRO;
1037	}
1038	else
1039	{
1040	if (hWindow == HWND_DESKTOP) {
1041	hps = WinGetScreenPS (hWindow);
1042	}
1043	else {
1044	int clipstyle = 0;
1045	int clipwnd = HWND_TOP;
1046	if(flags & (DCX_USESTYLE_W)) {
1047	int style = wnd->getStyle();
1048	if(style & WS_CLIPCHILDREN_W) {
1049	clipstyle \|= PSF_CLIPCHILDREN;
1050	}
1051	if(style & WS_CLIPSIBLINGS_W) {
1052	clipstyle \|= PSF_CLIPSIBLINGS;
1053	}
1054	if(wnd->fHasParentDC()) {
1055	clipstyle \|= PSF_PARENTCLIP;
1056	}
1057	}
1058	if(flags & DCX_CLIPSIBLINGS_W) {
1059	clipstyle \|= PSF_CLIPSIBLINGS;
1060	}
1061	if(flags & DCX_CLIPCHILDREN_W) {
1062	clipstyle \|= PSF_CLIPCHILDREN;
1063	}
1064	if(flags & DCX_PARENTCLIP_W) {
1065	clipstyle \|= PSF_PARENTCLIP;
1066	}
1067	if(clipstyle) {
1068	dprintf2(("WinGetClipPS style %x", clipstyle));
1069	hps = WinGetClipPS(hWindow, clipwnd, clipstyle);
1070	}
1071	else hps = WinGetPS (hWindow);
1072	}
1073	psType = MICRO_CACHED;
1074	}
1075
1076	if (!hps)
1077	goto error;
1078
1079	HPSToHDC (hWindow, hps, NULL, NULL);
1080	pHps = (pDCData)GpiQueryDCData (hps);
1081
1082	if(!(flags & DCX_WINDOW_W))
1083	{
1084	selectClientArea(wnd, pHps, NULL);
1085	}
1086	else removeClientArea(pHps);
1087
1088
1089	setMapMode(wnd, pHps, MM_TEXT_W);
1090
1091	if ((flags & DCX_EXCLUDERGN_W) \|\| (flags & DCX_INTERSECTRGN_W))
1092	{
1093	ULONG BytesNeeded;
1094	PRGNDATA_W RgnData;
1095	PRECT pr;
1096	int i;
1097	RECTL rectl;
1098
1099	if (!hrgn)
1100	goto error;
1101
1102	success = TRUE;
1103	if (flags & DCX_EXCLUDERGN_W)
1104	{
1105	#if 0 //CB: todo
1106	long height;
1107
1108	BytesNeeded = GetRegionData (hrgn, 0, NULL);
1109	RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
1110	if (RgnData == NULL)
1111	goto error;
1112	GetRegionData (hrgn, BytesNeeded, RgnData);
1113
1114	i = RgnData->rdh.nCount;
1115	pr = (PRECT)(RgnData->Buffer);
1116
1117	if (flags & DCX_WINDOW_W)
1118	height = wnd->getWindowHeight();
1119	else height = wnd->getClientHeight();
1120
1121	for (; (i > 0) && success; i--, pr++) {
1122	LONG y = pr->yBottom;
1123
1124	pr->yBottom = height - pr->yTop;
1125	pr->yTop = height - y;
1126	success &= GpiExcludeClipRectangle (pHps->hps, pr);
1127	}
1128	#endif
1129	}
1130	else //DCX_INTERSECTRGN_W
1131	{
1132	//SvL: I'm getting paint problems when clipping a dc created in GetDCEx
1133	// with a region that covers the entire window (RealPlayer 7 Update 1)
1134	// Using SelectClipRgn here doesn't make any difference.
1135	if(ExtSelectClipRgn(pHps->hps, hrgn, RGN_AND_W) == ERROR_W) {
1136	dprintf(("ExtSelectClipRgn failed!!"));
1137	}
1138	}
1139	if (!success)
1140	goto error;
1141	}
1142
1143	if (creatingOwnDC)
1144	wnd->setOwnDC ((HDC)hps);
1145
1146	pHps->psType = psType;
1147	pHps->hdcType = TYPE_1;
1148	//TODO: WM_SETREDRAW affects drawingAllowed flag!!
1149	GpiSetDrawControl (hps, DCTL_DISPLAY, drawingAllowed ? DCTL_ON : DCTL_OFF);
1150
1151	dprintf (("User32: GetDCEx hwnd %x (%x %x) -> hdc %x", hwnd, hrgn, flags, pHps->hps));
1152	return (HDC)pHps->hps;
1153
1154	error:
1155	/* Something went wrong; clean up
1156	*/
1157	dprintf(("ERROR: GetDCEx hwnd %x (%x %x) FAILED!", hwnd, hrgn, flags));
1158	DebugInt3();
1159	if (pHps)
1160	{
1161	if (pHps->hps)
1162	{
1163	if(pHps->psType == MICRO_CACHED)
1164	WinReleasePS(pHps->hps);
1165	else
1166	GpiDestroyPS(pHps->hps);
1167	}
1168
1169	if (pHps->hdc) DevCloseDC(pHps->hdc);
1170	if (pHps->hrgnHDC) GpiDestroyRegion(pHps->hps, pHps->hrgnHDC);
1171
1172	O32_DeleteObject (pHps->nullBitmapHandle);
1173	}
1174	SetLastError(ERROR_INVALID_PARAMETER_W);
1175	return NULL;
1176	}
1177	//******************************************************************************
1178	//******************************************************************************
1179	HDC WIN32API GetDC (HWND hwnd)
1180	{
1181	if(!hwnd)
1182	return GetDCEx( GetDesktopWindow(), 0, DCX_CACHE_W \| DCX_WINDOW_W );
1183	return GetDCEx (hwnd, NULL, 0);
1184	}
1185	//******************************************************************************
1186	//******************************************************************************
1187	HDC WIN32API GetWindowDC (HWND hwnd)
1188	{
1189	if (!hwnd) hwnd = GetDesktopWindow();
1190	return GetDCEx (hwnd, NULL, DCX_WINDOW_W);
1191	}
1192	//******************************************************************************
1193	// This implementation of RedrawWindow supports
1194	// RDW_ERASE
1195	// RDW_NOERASE
1196	// RDW_INTERNALPAINT
1197	// RDW_NOINTERNALPAINT
1198	// RDW_INVALIDATE
1199	// RDW_VALIDATE
1200	// RDW_ERASENOW
1201	// RDW_UPDATENOW
1202	//******************************************************************************
1203	BOOL WIN32API RedrawWindow(HWND hwnd, const RECT* pRect, HRGN hrgn, DWORD redraw)
1204	{
1205	Win32BaseWindow *wnd;
1206
1207	if(pRect) {
1208	dprintf(("RedrawWindow %x (%d,%d)(%d,%d) %x %x", hwnd, pRect->left, pRect->top, pRect->right, pRect->bottom, hrgn, redraw));
1209	}
1210	else dprintf(("RedrawWindow %x %x %x %x", hwnd, pRect, hrgn, redraw));
1211
1212	if (hwnd == NULLHANDLE)
1213	{
1214	#if 1
1215	// Don't do this for now (causes lots of desktop repaints in WordPad)
1216	SetLastError(ERROR_INVALID_PARAMETER_W);
1217	return FALSE;
1218	#else
1219	hwnd = HWND_DESKTOP;
1220	wnd = Win32BaseWindow::GetWindowFromOS2Handle(OSLIB_HWND_DESKTOP);
1221
1222	if (!wnd)
1223	{
1224	dprintf(("USER32:dc: RedrawWindow can't find desktop window %08xh\n",
1225	hwnd));
1226	SetLastError(ERROR_INVALID_PARAMETER_W);
1227	return FALSE;
1228	}
1229	#endif
1230	}
1231	else
1232	{
1233	wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
1234
1235	if (!wnd)
1236	{
1237	dprintf(("USER32:dc: RedrawWindow can't find window %08xh\n",
1238	hwnd));
1239	SetLastError(ERROR_INVALID_PARAMETER_W);
1240	return FALSE;
1241	}
1242	//TODO: If frame, exclude client window from update
1243	if(redraw & RDW_FRAME_W) {
1244	hwnd = wnd->getOS2WindowHandle();
1245	}
1246	else hwnd = wnd->getOS2WindowHandle();
1247
1248	}
1249
1250	BOOL IncludeChildren = redraw & RDW_ALLCHILDREN_W ? TRUE : FALSE;
1251	BOOL success = TRUE;
1252	HPS hpsTemp = NULLHANDLE;
1253	HRGN hrgnTemp = NULLHANDLE;
1254	RECTL rectl;
1255
1256	if (hrgn)
1257	{
1258	ULONG BytesNeeded;
1259	PRGNDATA_W RgnData;
1260	PRECTL pr;
1261	int i;
1262	LONG height = wnd ? wnd->getClientHeight() : OSLibQueryScreenHeight();
1263
1264	if (!hrgn)
1265	goto error;
1266
1267	BytesNeeded = O32_GetRegionData (hrgn, 0, NULL);
1268	RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
1269	if (RgnData == NULL)
1270	goto error;
1271	O32_GetRegionData (hrgn, BytesNeeded, RgnData);
1272
1273	pr = (PRECTL)(RgnData->Buffer);
1274	for (i = RgnData->rdh.nCount; i > 0; i--, pr++) {
1275	LONG temp = pr->yTop;
1276	pr->yTop = height - pr->yBottom;
1277	pr->yBottom = height - temp;
1278	}
1279
1280	hpsTemp = WinGetScreenPS (HWND_DESKTOP);
1281	hrgnTemp = GpiCreateRegion (hpsTemp, RgnData->rdh.nCount, (PRECTL)(RgnData->Buffer));
1282	if (!hrgnTemp) goto error;
1283	}
1284	else if (pRect)
1285	{
1286	LONG height = wnd ? wnd->getClientHeight() : OSLibQueryScreenHeight();
1287
1288	PMRECT_FROM_WINRECT (rectl, *pRect);
1289	rectl.yTop = height - rectl.yTop;
1290	rectl.yBottom = height - rectl.yBottom;
1291	}
1292
1293	if (redraw & RDW_INVALIDATE_W)
1294	{
1295	//TODO: SvL: pingpong.exe doesn't have RDW_NOERASE, but doesn't want WM_ERASEBKGND msgs
1296	if (redraw & RDW_ERASE_W) {
1297	wnd->setEraseBkgnd(TRUE);
1298	}
1299
1300	if (!pRect && !hrgn)
1301	success = WinInvalidateRect (hwnd, NULL, IncludeChildren);
1302	else
1303	if (hrgn)
1304	success = WinInvalidateRegion (hwnd, hrgnTemp, IncludeChildren);
1305	else
1306	success = WinInvalidateRect (hwnd, &rectl, IncludeChildren);
1307
1308	if (!success) goto error;
1309	}
1310	else if (redraw & RDW_VALIDATE_W)
1311	{
1312	if (redraw & RDW_NOERASE_W)
1313	wnd->setEraseBkgnd(FALSE);
1314
1315	if (WinQueryUpdateRect (hwnd, NULL))
1316	{
1317	if (!pRect && !hrgn)
1318	success = WinValidateRect (hwnd, NULL, IncludeChildren);
1319	else
1320	if (hrgn)
1321	success = WinValidateRegion (hwnd, hrgnTemp, IncludeChildren);
1322	else
1323	success = WinValidateRect (hwnd, &rectl, IncludeChildren);
1324	if (!success) goto error;
1325	}
1326	}
1327
1328	if(WinQueryUpdateRect(hwnd, NULL))
1329	{
1330	//TODO: Does this work if RDW_ALLCHILDREN is set??
1331	if(redraw & RDW_UPDATENOW_W) {
1332	wnd->MsgPaint (0, FALSE);
1333	}
1334	else
1335	// if((redraw & RDW_ERASE_W) && (redraw & RDW_ERASENOW_W))
1336	if(redraw & RDW_ERASENOW_W && wnd->needsEraseBkgnd())
1337	wnd->setEraseBkgnd(sendEraseBkgnd(wnd) == 0);
1338	}
1339	else if((redraw & RDW_INTERNALPAINT_W) && !(redraw & RDW_INVALIDATE_W))
1340	{
1341	if(redraw & RDW_UPDATENOW_W)
1342	wnd->MsgPaint (0, FALSE);
1343	else PostMessageA(hwnd, WINWM_PAINT, 0, 0);
1344	}
1345
1346	error:
1347	/* clean up */
1348	if (hrgnTemp)
1349	GpiDestroyRegion (hpsTemp, hrgnTemp);
1350
1351	if (hpsTemp)
1352	WinReleasePS (hpsTemp);
1353
1354	if (!success)
1355	SetLastError(ERROR_INVALID_PARAMETER_W);
1356
1357	return (success);
1358	}
1359	//******************************************************************************
1360	//******************************************************************************
1361	BOOL WIN32API UpdateWindow (HWND hwnd)
1362	{
1363	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
1364
1365	if(!wnd) {
1366	SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
1367	return FALSE;
1368	}
1369
1370	dprintf (("User32: UpdateWindow hwnd %x", hwnd));
1371	////SvL: This doesn't work right (Wine uses RDW_NOCHILDREN_W -> doesn't work here)
1372	//// Breaks vpbuddy
1373	//// return RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW_W \| RDW_ALLCHILDREN_W);
1374	WinUpdateWindow(wnd->getOS2WindowHandle());
1375	return TRUE;
1376	}
1377	//******************************************************************************
1378	//******************************************************************************
1379	BOOL WIN32API InvalidateRect (HWND hwnd, const RECT *pRect, BOOL erase)
1380	{
1381	BOOL result;
1382
1383	if(pRect) {
1384	dprintf(("InvalidateRect %x (%d,%d)(%d,%d) erase=%d", hwnd, pRect->left, pRect->top, pRect->right, pRect->bottom, erase));
1385	}
1386	else dprintf(("InvalidateRect %x NULL erase=%d", hwnd, erase));
1387	result = RedrawWindow (hwnd, pRect, NULLHANDLE,
1388	RDW_ALLCHILDREN_W \| RDW_INVALIDATE_W \|
1389	(erase ? RDW_ERASE_W : 0) \|
1390	(hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1391	return (result);
1392	}
1393	//******************************************************************************
1394	//******************************************************************************
1395	BOOL WIN32API InvalidateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
1396	{
1397	BOOL result;
1398
1399	dprintf(("InvalidateRgn %x %x erase=%d", hwnd, hrgn, erase));
1400	result = RedrawWindow (hwnd, NULL, hrgn,
1401	RDW_ALLCHILDREN_W \| RDW_INVALIDATE_W \|
1402	(erase ? RDW_ERASE_W : 0) \|
1403	(hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1404	return (result);
1405	}
1406	//******************************************************************************
1407	//TODO: Change for client rectangle!!!!!
1408	//******************************************************************************
1409	BOOL setPMRgnIntoWinRgn (HRGN hrgnPM, HRGN hrgnWin, LONG height)
1410	{
1411	BOOL rc;
1412	HPS hps = WinGetScreenPS (HWND_DESKTOP);
1413	RGNRECT rgnRect;
1414	rgnRect.ircStart = 1;
1415	rgnRect.crc = 0;
1416	rgnRect.ulDirection = RECTDIR_LFRT_TOPBOT; // doesn't make a difference because we're getting them all
1417
1418	rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, NULL);
1419
1420	if (rc && (rgnRect.crcReturned > 0))
1421	{
1422	PRECTL Rcls = new RECTL[rgnRect.crcReturned];
1423	PRECTL pRcl = Rcls;
1424
1425	if (Rcls != NULL)
1426	{
1427	rgnRect.crc = rgnRect.crcReturned;
1428	rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, Rcls);
1429
1430	rc = O32_SetRectRgn (hrgnWin, pRcl->xLeft,
1431	pRcl->xRight,
1432	height - pRcl->yTop,
1433	height - pRcl->yBottom);
1434
1435	if (rgnRect.crcReturned > 1)
1436	{
1437	int i;
1438	HRGN temp;
1439	temp = O32_CreateRectRgn (0, 0, 1, 1);
1440
1441	for (i = 1, pRcl++; rc && (i < rgnRect.crcReturned); i++, pRcl++)
1442	{
1443	rc = O32_SetRectRgn (temp, pRcl->xLeft,
1444	pRcl->xRight,
1445	height - pRcl->yTop,
1446	height - pRcl->yBottom);
1447	rc &= O32_CombineRgn (hrgnWin, hrgnWin, temp, RGN_OR_W);
1448	}
1449	O32_DeleteObject (temp);
1450	}
1451	delete[] Rcls;
1452	}
1453	else
1454	{
1455	rc = FALSE;
1456	}
1457	}
1458	else
1459	{
1460	rc = O32_SetRectRgn (hrgnWin, 0, 0, 0, 0);
1461	}
1462
1463	WinReleasePS (hps);
1464	return (rc);
1465	}
1466	//******************************************************************************
1467	//TODO: Check if this one works correctly...
1468	//******************************************************************************
1469	BOOL WIN32API ScrollDC(HDC hDC, int dx, int dy, const RECT *pScroll,
1470	const RECT *pClip, HRGN hrgnUpdate, LPRECT pRectUpdate)
1471	{
1472	BOOL rc = TRUE;
1473
1474	dprintf (("USER32: ScrollDC %x (%d,%d), %x %x %x %x", hDC, dx, dy, pScroll, pClip, hrgnUpdate, pRectUpdate));
1475
1476	if (!hDC)
1477	{
1478	return (FALSE);
1479	}
1480
1481	pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hDC);
1482	HWND hwnd = pHps->hwnd;
1483	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
1484
1485	if ((hwnd == NULLHANDLE) \|\| !wnd)
1486	{
1487	return (FALSE);
1488	}
1489
1490	POINTL ptl[2] = { 0, 0, dx, dy };
1491
1492	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, ptl);
1493	dx = (int)(ptl[1].x - ptl[0].x);
1494	dy = (int)(ptl[1].y - ptl[0].y);
1495
1496	RECT scrollRect;
1497	RECT clipRect;
1498
1499	if (pClip)
1500	{
1501	memcpy(&clipRect, pClip, sizeof(clipRect));
1502
1503	if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1504	(clipRect.left != clipRect.right) &&
1505	(clipRect.bottom != clipRect.top))
1506	{
1507	if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1508	clipRect.right -= abs(pHps->worldXDeltaFor1Pixel);
1509	else
1510	clipRect.left += abs(pHps->worldXDeltaFor1Pixel);
1511
1512	if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1513	clipRect.bottom -= abs(pHps->worldYDeltaFor1Pixel);
1514	else
1515	clipRect.top += abs(pHps->worldYDeltaFor1Pixel);
1516	}
1517	GpiConvert(pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&clipRect);
1518	if (clipRect.right < clipRect.left) {
1519	ULONG temp = clipRect.left;
1520	clipRect.left = clipRect.right;
1521	clipRect.right = temp;
1522	}
1523	if (clipRect.bottom < clipRect.top) {
1524	ULONG temp = clipRect.top;
1525	clipRect.top = clipRect.bottom;
1526	clipRect.bottom = temp;
1527	}
1528	}
1529
1530	if (pScroll)
1531	{
1532	memcpy(&scrollRect, pScroll, sizeof(scrollRect));
1533
1534	if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1535	(scrollRect.left != scrollRect.right) &&
1536	(scrollRect.top != scrollRect.bottom))
1537	{
1538	if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1539	scrollRect.right -= abs(pHps->worldXDeltaFor1Pixel);
1540	else
1541	scrollRect.left += abs(pHps->worldXDeltaFor1Pixel);
1542
1543	if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1544	scrollRect.bottom -= abs(pHps->worldYDeltaFor1Pixel);
1545	else
1546	scrollRect.top += abs(pHps->worldYDeltaFor1Pixel);
1547	}
1548	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&scrollRect);
1549	if (scrollRect.right < scrollRect.left) {
1550	ULONG temp = scrollRect.left;
1551	scrollRect.left = scrollRect.right;
1552	scrollRect.right = temp;
1553	}
1554	if (scrollRect.bottom < scrollRect.top) {
1555	ULONG temp = scrollRect.top;
1556	scrollRect.top = scrollRect.bottom;
1557	scrollRect.bottom = temp;
1558	}
1559	}
1560	RECTL rectlUpdate;
1561	HRGN hrgn;
1562	RECTL clientRect;
1563	RECTL clipOS2;
1564	RECTL scrollOS2;
1565	PRECTL pScrollOS2 = NULL;
1566	PRECTL pClipOS2 = NULL;
1567
1568	mapWin32ToOS2Rect(wnd->getWindowHeight(), wnd->getClientRectPtr(), (PRECTLOS2)&clientRect);
1569
1570	if(pScroll) {
1571	mapWin32ToOS2RectClientToFrame(wnd, &scrollRect, (PRECTLOS2)&scrollOS2);
1572	pScrollOS2 = &scrollOS2;
1573
1574	//Scroll rectangle relative to client area
1575	WinIntersectRect ((HAB) 0, pScrollOS2, pScrollOS2, &clientRect);
1576	}
1577	else {
1578	pScrollOS2 = &clientRect;
1579	}
1580
1581	if(pClip) {
1582	mapWin32ToOS2RectClientToFrame(wnd, &clipRect, (PRECTLOS2)&clipOS2);
1583	pClipOS2 = &clipOS2;
1584
1585	//Clip rectangle relative to client area
1586	WinIntersectRect((HAB) 0, pClipOS2, pClipOS2, &clientRect);
1587	}
1588	else {
1589	pClipOS2 = &clientRect;
1590	}
1591
1592	LONG lComplexity = WinScrollWindow(hwnd, dx, dy, pScrollOS2,
1593	pClipOS2, hrgn, &rectlUpdate, 0);
1594	if (lComplexity == RGN_ERROR)
1595	{
1596	return (FALSE);
1597	}
1598
1599	RECT winRectUpdate;
1600
1601	mapOS2ToWin32Rect(wnd->getWindowHeight(), (PRECTLOS2)&rectlUpdate, &winRectUpdate);
1602
1603	if (pRectUpdate)
1604	*pRectUpdate = winRectUpdate;
1605
1606	if (hrgnUpdate)
1607	rc = setPMRgnIntoWinRgn(hrgn, hrgnUpdate, wnd->getWindowHeight());
1608
1609	return (rc);
1610	}
1611	//******************************************************************************
1612	//******************************************************************************
1613	BOOL WIN32API ScrollWindow(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip)
1614	{
1615	Win32BaseWindow *window;
1616	APIRET rc;
1617	RECTL clientRect;
1618	RECTL scrollRect;
1619	RECTL clipRect;
1620	PRECTL pScrollOS2 = NULL;
1621	PRECTL pClipOS2 = NULL;
1622	ULONG scrollFlags = SW_INVALIDATERGN;
1623
1624	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1625	if(!window) {
1626	dprintf(("ScrollWindow, window %x not found", hwnd));
1627	return 0;
1628	}
1629	dprintf(("ScrollWindow %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1630
1631	mapWin32ToOS2Rect(window->getWindowHeight(), window->getClientRectPtr(), (PRECTLOS2)&clientRect);
1632
1633	if(pScroll) {
1634	mapWin32ToOS2RectClientToFrame(window,(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1635	pScrollOS2 = &scrollRect;
1636
1637	//Scroll rectangle relative to client area
1638	WinIntersectRect ((HAB) 0, pScrollOS2, pScrollOS2, &clientRect);
1639	}
1640	else {
1641	pScrollOS2 = &clientRect;
1642	scrollFlags \|= SW_SCROLLCHILDREN;
1643	}
1644
1645	if(pClip) {
1646	mapWin32ToOS2RectClientToFrame(window,(RECT *)pClip, (PRECTLOS2)&clipRect);
1647	pClipOS2 = &clipRect;
1648
1649	//Clip rectangle relative to client area
1650	WinIntersectRect ((HAB) 0, pClipOS2, pClipOS2, &clientRect);
1651	}
1652	else {
1653	pClipOS2 = &clientRect;
1654	}
1655
1656	dy = revertDy (window, dy);
1657
1658	rc = WinScrollWindow(window->getOS2WindowHandle(), dx, dy,
1659	pScrollOS2, pClipOS2, NULLHANDLE,
1660	NULL, scrollFlags);
1661
1662	return (rc != RGN_ERROR);
1663	}
1664	//******************************************************************************
1665	//******************************************************************************
1666	INT WIN32API ScrollWindowEx(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip,
1667	HRGN hrgnUpdate, PRECT pRectUpdate, UINT scrollFlag)
1668	{
1669	Win32BaseWindow *window;
1670	APIRET rc;
1671	RECTL clientRect;
1672	RECTL scrollRect;
1673	RECTL clipRect;
1674	PRECTL pScrollOS2 = NULL;
1675	PRECTL pClipOS2 = NULL;
1676	ULONG scrollFlags = 0;
1677	int regionType = ERROR_W;
1678
1679	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1680	if(!window) {
1681	dprintf(("ScrollWindowEx, window %x not found", hwnd));
1682	return 0;
1683	}
1684
1685	dprintf(("ScrollWindowEx %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1686
1687	dy = revertDy (window, dy);
1688
1689	if (scrollFlag & SW_INVALIDATE_W) scrollFlags \|= SW_INVALIDATERGN;
1690	if (scrollFlag & SW_SCROLLCHILDREN_W) scrollFlags \|= SW_SCROLLCHILDREN;
1691
1692	mapWin32ToOS2Rect(window->getWindowHeight(), window->getClientRectPtr(), (PRECTLOS2)&clientRect);
1693
1694	if(pScroll) {
1695	mapWin32ToOS2RectClientToFrame(window,(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1696	pScrollOS2 = &scrollRect;
1697
1698	//Scroll rectangle relative to client area
1699	WinIntersectRect ((HAB) 0, pScrollOS2, pScrollOS2, &clientRect);
1700	}
1701	else {
1702	pScrollOS2 = &clientRect;
1703	scrollFlags \|= SW_SCROLLCHILDREN; //TODO: ?????
1704	}
1705
1706	if(pClip) {
1707	mapWin32ToOS2RectClientToFrame(window,(RECT *)pClip, (PRECTLOS2)&clipRect);
1708	pClipOS2 = &clipRect;
1709
1710	//Clip rectangle relative to client area
1711	WinIntersectRect ((HAB) 0, pClipOS2, pClipOS2, &clientRect);
1712	}
1713	else {
1714	pClipOS2 = &clientRect;
1715	}
1716
1717	RECTL rectlUpdate;
1718	HRGN hrgn;
1719
1720	if (scrollFlag & SW_SMOOTHSCROLL_W)
1721	{
1722	INT time = (scrollFlag >> 16) & 0xFFFF;
1723
1724	//CB: todo, scroll in several steps
1725	// is time in ms? time <-> iteration count?
1726	}
1727
1728	LONG lComplexity = WinScrollWindow (window->getOS2WindowHandle(), dx, dy,
1729	pScrollOS2,
1730	pClipOS2,
1731	hrgn, &rectlUpdate, scrollFlags);
1732	if (lComplexity == RGN_ERROR)
1733	{
1734	return ERROR_W;
1735	}
1736
1737	RECT winRectUpdate;
1738
1739	mapOS2ToWin32Rect(window->getWindowHeight(), (PRECTLOS2)&rectlUpdate, &winRectUpdate);
1740
1741	if (pRectUpdate)
1742	*pRectUpdate = winRectUpdate;
1743
1744	if (hrgnUpdate)
1745	rc = setPMRgnIntoWinRgn (hrgn, hrgnUpdate, window->getWindowHeight());
1746
1747	#if 0
1748	//SvL: WinScrollWindow already invalidates the area; no need to do it again
1749	//(call to invalidateRect was wrong; has to include erase flag)
1750	if ((scrollFlag & SW_INVALIDATE_W) &&
1751	((lComplexity == RGN_RECT) \|\| (lComplexity == RGN_COMPLEX)))
1752	{
1753	rc = InvalidateRect (hwnd, &winRectUpdate, (scrollFlag & SW_ERASE_W) ? 1 : 0);
1754	if (rc == FALSE)
1755	{
1756	return (0);
1757	}
1758	}
1759	#endif
1760
1761	switch (lComplexity)
1762	{
1763	case RGN_NULL:
1764	regionType = NULLREGION_W;
1765	break;
1766	case RGN_RECT:
1767	regionType = SIMPLEREGION_W;
1768	break;
1769	case RGN_COMPLEX:
1770	regionType = COMPLEXREGION_W;
1771	break;
1772	default:
1773	regionType = ERROR_W;
1774	break;
1775	}
1776
1777	return (regionType);
1778	}
1779	//******************************************************************************
1780	//******************************************************************************
1781	HWND WIN32API WindowFromDC(HDC hdc)
1782	{
1783	pDCData pHps = (pDCData)GpiQueryDCData( (HPS)hdc );
1784
1785	dprintf2(("USER32: WindowFromDC %x", hdc));
1786	if ( pHps )
1787	return Win32BaseWindow::OS2ToWin32Handle(pHps->hwnd);
1788	else
1789	return 0;
1790	}
1791	//******************************************************************************
1792	//******************************************************************************
1793	INT WIN32API ExcludeUpdateRgn( HDC hDC, HWND hWnd)
1794	{
1795	dprintf(("USER32: ExcludeUpdateRgn\n"));
1796	hWnd = Win32BaseWindow::Win32ToOS2Handle(hWnd);
1797
1798	return O32_ExcludeUpdateRgn(hDC,hWnd);
1799	}
1800	//******************************************************************************
1801	//******************************************************************************
1802	BOOL WIN32API ValidateRect( HWND hwnd, const RECT * lprc)
1803	{
1804	if(lprc) {
1805	dprintf(("USER32: ValidateRect %x (%d,%d)(%d,%d)", hwnd, lprc->left, lprc->top, lprc->right, lprc->bottom));
1806	}
1807	else dprintf(("USER32: ValidateRect %x", hwnd));
1808
1809	return RedrawWindow( hwnd, lprc, 0, RDW_VALIDATE_W \| RDW_NOCHILDREN_W \| (hwnd==0 ? RDW_UPDATENOW_W : 0));
1810	}
1811	//******************************************************************************
1812	//******************************************************************************
1813	BOOL WIN32API ValidateRgn( HWND hwnd, HRGN hrgn)
1814	{
1815	dprintf(("USER32: ValidateRgn %x %x", hwnd, hrgn));
1816	return RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE_W \| RDW_NOCHILDREN_W \| (hwnd==0 ? RDW_UPDATENOW_W : 0));
1817	}
1818	/*****************************************************************************
1819	* Name : int WIN32API GetWindowRgn
1820	* Purpose : The GetWindowRgn function obtains a copy of the window region of a window.
1821	* Parameters: HWND hWnd handle to window whose window region is to be obtained
1822	* HRGN hRgn handle to region that receives a copy of the window region
1823	* Variables :
1824	* Result : NULLREGION, SIMPLEREGION, COMPLEXREGION, ERROR
1825	* Remark :
1826	* Status : UNTESTED STUB
1827	*
1828	* Author : Patrick Haller [Thu, 1998/02/26 11:55]
1829	*****************************************************************************/
1830
1831	int WIN32API GetWindowRgn(HWND hwnd, HRGN hRgn)
1832	{
1833	Win32BaseWindow *window;
1834	HRGN hWindowRegion;
1835
1836	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1837	if(!window) {
1838	dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
1839	SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
1840	return 0;
1841	}
1842	dprintf(("USER32:GetWindowRgn (%x,%x)", hwnd, hRgn));
1843	hWindowRegion = window->GetWindowRegion();
1844
1845	return O32_CombineRgn(hRgn, hWindowRegion, 0, RGN_COPY_W);
1846	}
1847	/*****************************************************************************
1848	* Name : int WIN32API SetWindowRgn
1849	* Purpose : The SetWindowRgn function sets the window region of a window. The
1850	* window region determines the area within the window where the
1851	* operating system permits drawing. The operating system does not
1852	* display any portion of a window that lies outside of the window region
1853	* When this function is called, the system sends the WM_WINDOWPOSCHANGING and
1854	* WM_WINDOWPOSCHANGED messages to the window.
1855	*
1856	* Parameters: HWND hWnd handle to window whose window region is to be set
1857	* HRGN hRgn handle to region
1858	* BOOL bRedraw window redraw flag
1859	* Variables :
1860	* Result : If the function succeeds, the return value is non-zero.
1861	* If the function fails, the return value is zero.
1862	* Remark :
1863	* Status : UNTESTED STUB
1864	*
1865	* Author : Patrick Haller [Thu, 1998/02/26 11:55]
1866	*****************************************************************************/
1867
1868	int WIN32API SetWindowRgn(HWND hwnd,
1869	HRGN hRgn,
1870	BOOL bRedraw)
1871	{
1872	Win32BaseWindow *window;
1873	HRGN hWindowRegion;
1874
1875	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1876	if(!window) {
1877	dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
1878	SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
1879	return 0;
1880	}
1881	dprintf(("USER32:SetWindowRgn (%x,%x,%d)", hwnd, hRgn, bRedraw));
1882	if(window->GetWindowRegion()) {
1883	O32_DeleteObject(window->GetWindowRegion());
1884	}
1885	window->SetWindowRegion(hRgn);
1886	if(bRedraw) {
1887	RedrawWindow(hwnd, 0, 0, RDW_UPDATENOW_W);
1888	}
1889	//TODO:
1890	// When this function is called, the system sends the WM_WINDOWPOSCHANGING and
1891	// WM_WINDOWPOSCHANGED messages to the window.
1892	return 1;
1893	}
1894	//******************************************************************************
1895	//******************************************************************************

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